Concern in White House over intelligence chief's Russian summit surprise

WASHINGTON (Reuters) - While U.S. President Donald Trump defended his efforts to build a relationship with Russian President Vladimir Putin, aides said on Friday there is some frustration that the U.S. intelligence chief did not know about plans for a second summit and they hope that meeting will follow a more traditional pattern.

Since Monday's summit and joint news conference in Helsinki, Trump and his aides have been trying to control the damage done when he stunned the world by siding with Putin over U.S. intelligence agencies on the question of Moscow's meddling in the 2016 U.S. election.